Emily Bell is director of the Tow Center for Digital Journalism at Columbia's Graduate School of Journalism. She previously worked for the Observer and then the Guardian for 18 years, setting up MediaGuardian.co.uk in 2000 and becoming editor-in-chief of Guardian Unlimited in 2001. In September 2006, Emily was promoted to the new position of Director of Digital Content for Guardian News and Media. Guardian.co.uk, the Guardian and Observer's network of websites, has won multiple awards, including the prestigious Webby for Best Newspaper on the web in 2005, 2006, 2007 and 2009.